That Valentine's Day is the day of love, almost everyone in the world knows about it. It is a holiday that is celebrated in many countries. But what do we actually know about Valentine's Day?

1. In the United States alone, about 36 million boxes of chocolate are sold on February 14th.

2. Valentine's Day is named after the Saint Valentine, a Roman priest who lived in the 3rd century AD. At that time, soldiers were not allowed to marry because it was believed that singles would be more willing to die on the battlefield. Saint Valentine believed that love could conquer all, so he married soldiers in secret. When this was discovered, Saint Valentine was executed.

3. In Germany, February 14 isn't a romantic day, but a terrible date. On that date, the betrayer of Christ, Judas, was born.

4. In some countries it's a custom for men to give women clothing on Valentine's Day. When the woman thinks the clothes are beautiful, she marries him.

5. North Wales someone named Albert Jones pulled off a very original stunt. He brought his wife a Valentine's card while he was sitting on the back of an elephant.

6. In the Netherlands, about 30 million cards, e-mails and text messages are sent for Valentine's Day.

7. Valentine's Day, is the most popular holiday to send a card, after Christmas.

8. Most condoms are sold in February and a month later there's a record for the number of pregnancy tests sold.

9. Three percent of people with a pet give his/her pet a gift on Valentine's Day.

10. Fifteen percent of US women send themselves flowers on Valentine's Day.

11. The first box of chocolates for Valentine's Day was introduced in 1868 by Richard Cadbury.

12. Teachers receive the most valentines. Next come children, mothers, wives, lovers and pets.

13. Approximately 220,000 marriage proposals are made every year on Valentine's Day. Isn't that a happy ending to this list?

Did you have a nice addition to this list of facts on Valentine's Day?